Socket for harrowrteeth



(No Model.)

I P. C. 8v 1. A. OARST BNSEN.

SOGKET FOB HARROW TEETH.

Patented Nov. 20, 1883.

INVENTOR:

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UNITED STATES PATENT" Fries.

PETER G. CARSTENSEN AND INGW'ER A. CARSTENSEN, OF WALNUT, IOWA.

SOCKET FOR HARROWeTEETH.

SPECIFICATION forming part of Letters Patent No. 288,773, dated November 20, 1883.

Application filed January 9, 1883. No model.)

I all whom it may concern.-

Be it known that we, PETER C. CARSTENSEN and INGW'ER A. OARSTENSEN, both of YValnut, in the county of Pottawatt-aniie and State of Iowa, have invented certain new and useful Improvements in Sockets for Harrow-Teeth, of which the following is a full, clear, and exact description.

This invention relates to sockets for harrowteeth, by which provision is made for holding the teeth perpendicular to the beam when the draft is-in one direction and in a backwardlyinclined position when the harrow is drawn in the opposite direction. Among other de- I 5 vices or constructions for this purpose, theharrow-tooth has been bent to form a right-angled arm at its upper end and passed through the timber-beams in an oblique direction and held in place by an angular staple, one end of which passed through the beam at right angles, and the whole being so constructed as to provide for the changed position of the tooth by the fit of its right-angled arm in a hole preferably oblique to'the cross-section of the harrowbeam.

Our invention consists of the construction and combination of parts, substantially as hereinafter more full yset forth and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figures 1 and 2 represent side views of a harrow-tooth and socket therefor in accordance with our invention, and as applied to a beam or bar of the harrow-frame, shown only in part, said views representing, respectively, the tooth in a backwardly-inclined position and in the perpendicular or straight one. Fig. 3 is a plan of said socket detached; and Fig. 4 a section thereof on the line as a; in Fig. 3.

A in the drawings indicates a barrow-tooth constructed with a right-angled arm, a, at its upper end.

B is one of the beams or bars of the barrow, and O is the metal socket or casting which carries said tooth; Said socket G is arranged bolt, 0. It is also preferably constructed with opposite side lips or flanges, d, on its upper surface to clip the beam or barA on either side, and thereby assist in holding the socket to its place. Formed within the upper surface of said socket is arecess or channel, 0, which may open through the one side of the socket, and which terminates at its other end in an aperture,f, that passes down through the socket.

The recess 6 is preferably arranged to occupy an oblique position to the sides of the socket and length of the beam or bar 13, and is of such depth and construction as to receive freely within it the right-angled arm a of the tooth A beneath the beam.

The aperture f, down through which the shank of the tooth A passes, is of graduallyincreasing oblong shape in a downward direction, having one straight side, f, and one sloping side, f. This construction provides for the tooth to adjust itself either into a perpendicular or backwardly-inclined position relatively to the beam, accordingly as the draft is reversed, as shown in Figs. 1 and 2, and the straight and sloping sides ff of the aperture f serve to hold the tooth in either of such changed positions as it is drawn over the ground.

By means of the teeth being fitted in sockets constructed as described, said sockets may be readily applied to either iron or wooden frames, and the frame also has a neater appearance than when the reversible or adjustable teeth are otherwise secured.

Having thus described our iinvention, what we claim as new, and desire to secure by Letters Patent, is-

1. The barrow-tooth socket C, constructed with a recess, e, arranged in and across its upper surface and terminating at its inner end in an aperture, f, madeto pass out through the bottom of the socket, and of adownwardlyincreasing oblong shape in direction of the length of the socket, with one of its sides or ends perpendicular to the face of the socket, and its other inclining backwardlyin relation thereto, substantially as specified.

2. The harrowtooth having a lateral cylin drical arm or axis, in combination with the sock et, having avert-ical aperture with a flared and a perpendicular side to receive the upper end IOU of said tooth, and having a recess to receive the axis or arm of the tooth, whereby the tooth barrow-tooth, A, having a right-angled upper is adapted to shift from a vertical to a reararm, a, and in relation to the beam or bar of wardly-inclined position as the movement of the barrow-frame, asherein set forth.

5 the harrow is reversed, substantially as specisloping side f, for use in connection with a fled PETER O. OARSTENSEN.

3. The metal socket O for a barrow-tooth, INGVER OARSTENSLN' constructed with abolt-hole, 1), side flanges, d d, Witnesses: and an upper recess, e, terminating in an 010- WVJH. LINFOR, 10 long aperture, f, having astraight side, f, and J. P. BIGELOW. 

